Advanced Composition Explorer (ACE)

The Advanced Composition Explorer (ACE) is a solar and space environment monitoring spacecraft launched by NASA in 1997. Positioned near Earth’s orbit, it continuously collects data about solar particles, solar wind, and cosmic rays. This information helps scientists understand space weather, which can affect satellites, communications, and power grids on Earth. ACE's real-time measurements enable early warnings of solar storms, helping to protect technology and prepare for potential disruptions caused by solar activity.